Know your DS Server architechture is SMP or MPP. ?

                   To know whether you are working on SMP or MPP ,Just have look at your configuration file .If "FastName"has same value for all the nodes in your configuration file then you are running on SMP.

If there are different "FastName's" then its MPP.

Sample config File for SMP:

main_program: APT configuration file: /ibmiscode/Configurations/ETL/my_config.apt
{ 
  node "Node1" { 
    fastname "FastName1" 
    pools "" 
    resource disk "/is_resource1/isent" {pools ""} 
    resource scratchdisk "/scratch1/sent" {pools ""} 
  } 

 node "Node2" { 
    fastname "FastName1" 
    pools "" 
    resource disk "/is_resource2/isent" {pools ""} 
    resource scratchdisk "/scratch2/sent" {pools ""} 
  } 

 node "Node3" { 
    fastname "FastName1" 
    pools "" 
    resource disk "/is_resource3/isent" {pools ""} 
    resource scratchdisk "/scratch3/sent" {pools ""} 
  } 

  node "Node4" { 
    fastname "FastName1" 
    pools "" 
    resource disk "/is_resource4/isent" {pools ""} 
    resource scratchdisk "/scratch4/sent" {pools ""} 
  } 
}

Note :For Server jobs it won't matter if it is SMP or MPP because Server jobs execute only on the machine where Data stage installed.

Hope This will help :)